CN203951118U - A kind of uncapping from the anti-explosion terminal box opening circuit - Google Patents
A kind of uncapping from the anti-explosion terminal box opening circuit Download PDFInfo
- Publication number
- CN203951118U CN203951118U CN201420407896.0U CN201420407896U CN203951118U CN 203951118 U CN203951118 U CN 203951118U CN 201420407896 U CN201420407896 U CN 201420407896U CN 203951118 U CN203951118 U CN 203951118U
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- Prior art keywords
- upper cover
- wire
- base
- hole
- screw rod
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Abstract
The utility model discloses a kind of uncapping from the anti-explosion terminal box opening circuit, comprise base and and upper cover, on base, be also provided with penetration pipe, in wire connection cavity, be also provided with wire connecting portion, wire connecting portion comprises inlet wire side, outgoing line side and conducting bar, on inlet wire side and outgoing line side, is provided with contact; On cover and be fixed with guide post, screw rod, conducting bar comprises insulating body and bonding jumper, is also provided with lock nut on screw rod, is also provided with sealing ring between lock nut and upper cover; Penetration pipe comprises that lead-in wire cylinder, sealing gasket, clamping nut, lead-in wire cylinder are provided with internal thread, sealing gasket and the clamping nut one end of reducing through hole, reducing through hole established and are provided with through hole.The utility model explosion-proof performance is good, and cable connector lug connection speed is fast, wire terminal stable connection is good.
Description
Technical field
The utility model relates to a kind of electric wire protector, particularly relates to a kind of uncapping from the anti-explosion terminal box opening circuit.
Background technology
Colliery subsurface environment is special, have inflammable gas and dust, once above-mentioned gas and dust run into any electric spark after reaching explosion limit, very easily cause serious work safety accident, therefore the system equipment such as the various types of communication under mine, monitoring, instrument and automation has explosion prevention function and seems particularly important.
Lighting installation under coal mine, power-equipment are many, and in zero duration line cord wiring process, terminal box is indispensable equipment.In practice, there is charged situation of separating shell because violation operation is easy in above terminal box, it is terminal box seal failure, connector lug is directly exposed in atmospheric environment, and the environment ignited that colliery is prone to causes great security threat, totally unfavorable to keeping the safety in production.
Utility model content
In practice, there is charged situation of separating shell because violation operation is easy for terminal box in above-mentioned prior art, it is terminal box seal failure, connector lug is directly exposed in atmospheric environment, the environment ignited that colliery is prone to causes great security threat, to the totally unfavorable problem of keeping the safety in production, the utility model provides a kind of and has uncapped from the anti-explosion terminal box opening circuit.
For the problems referred to above, a kind of the uncapping that the utility model provides solved problem from the anti-explosion terminal box opening circuit by following technical essential: a kind of uncapping from the anti-explosion terminal box opening circuit, comprise base in the form of slot and the upper cover being connected with bolt of lower base or screw, between described base and upper cover, form wire connection cavity, on the side of described base, be also fixed with at least one penetration pipe, in described wire connection cavity, be also provided with wire connecting portion, described wire connecting portion comprises inlet wire side, outgoing line side and conducting bar, on described inlet wire side and outgoing line side, be provided with at least one contact, and the contact in inlet wire side is symmetrical arranged in pairs with the contact on outgoing line side,
On described, cover and be also fixed with guide post, on cover and be also provided with the screw rod that one-tenth is threaded with it, described screw rod is parallel with guide post axis, conducting bar comprises insulating body and is arranged on the bonding jumper on insulating body, conducting bar is connected with screw flight section end, and conducting bar position in the axial direction of screw rod is fixed and screw rod can rotate around its axis, on conducting bar, be also provided with the guide post hole with guide post matched in clearance, the nut end of screw rod and thread segment end lay respectively at outside and the inner side of upper cover, on screw rod in upper cover outside, be also provided with the lock nut being connected with screw flight, between described lock nut and upper cover, be also provided with sealing ring,
Described penetration pipe comprises the lead-in wire cylinder being fixed on base, on the axis of lead-in wire cylinder, be provided with reducing through hole, one end of reducing through hole is provided with internal thread, in described reducing through hole, be embedded with sealing gasket, in internal thread hole, be provided with the clamping nut that one-tenth is threaded with it, one end in contact of one end of clamping nut and sealing gasket, and the other end of sealing gasket fixes with respect to a lead-in wire cylinder position relationship, the through hole that sealing gasket is parallel with reducing through-bore axis with being provided with axis on clamping nut.
Concrete, the base of setting and upper cover are isolated for wire connection cavity and external environment, and wire connection cavity is for the accommodation space of cable connector like this, and the electric spark that cable connector place produces is shielded by base and upper cover, reaches the explosion prevention function of terminal box, the contact arranging is for being connected on the connection of circuit for circuit, contact on inlet wire side and outgoing line side is symmetrical arranged in pairs, every pair of contact is for two contacts at forming circuit, be arranged on each bonding jumper on conducting bar for the circuit turn-on between a pair of contact, like this, after base has been connected with upper cover, make conducting bar towards a lateral movement of wire connecting portion until bonding jumper is connected two corresponding contacts by rotary screw, the function that the utility model performance cable is connected, in the time that the utility model need to be dismantled, because screw rod becomes to be threaded with upper cover, like this, when upper cover departs from base, bonding jumper also departs from contact, the circuit that makes like this energising connect becomes off state, reach and prevent that the charged situation about opening that opens by mistake of terminal box from occurring, the guide post arranging is the guiding in the motion process direction of motion for conducting bar, is convenient to realize conducting bar and moves along the direction of contact, is conducive to the precision of bonding jumper and contacts mates, the lock nut arranging loosens and the sealing at screw rod and upper cover points of engagement place for screw rod: reach after the station in on-state at conducting bar, realize screw rod and force sealed ring deformation to stop up the gap between screw rod and upper cover to the compression of sealing ring under the upper locking covering, lock nut locking state by screwing lock nut, realize the technique effect of sealing ring sealing, the penetration pipe arranging is drawn and is introduced from the utility model for cable, in the version of penetration pipe, reducing through hole on through hole, lead-in wire cylinder between clamping nut and sealing gasket passes penetration pipe for cable, the structural relation of clamping nut and sealing gasket, make clamping nut further going deep in the process of reducing through hole, the length of sealing gasket quilt is compressed, make like this sealing gasket to its through-hole side distortion, in above process, on sealing gasket, the aperture of through hole diminishes, and finally contacts the sealing of the junction of realizing terminal box and cable with the outer wall of cable.
Further technical scheme is:
Due to base and upper cover no matter be for security consideration or save material and consider, in prior art, adopt plastic material with upper-part more, for the connecting thread that prevents base and upper cover is in easily premature failure under aging defect of plastics, on described base, be fixed with multiple threaded blocks that are connected with upper bonnet bolt or screw for base, described threaded block is the internal thread metallic sheath being embedded on base.
For ensureing the sealing property between base and upper cover, between the link end face of described base and upper cover, be also provided with housing seal circle.
Resist the ability of outside destroy for strengthening upper cover, cover on described and be also provided with reinforcement.
For ease of installation of the present utility model and fixing, described base or on cover and be also provided with holder, described holder is the block structure that one end and base or upper cover were fixedly connected with and were provided with on it fixed bolt hole.
For further ensureing the sealing property at penetration pipe place, the internal thread arranging on reducing through hole on described lead-in wire cylinder is gas thread.
For making sealing gasket and cable there is larger contact area, to increase the frictional force between sealing gasket and cable, be convenient to like this transmit by base or upper cover the pulling force of cable, avoid cable connector to connect under cable tension stress loosening, the length of described sealing gasket is not less than 3mm.
For ease of the structure that is connected, simplifies contact of contact and cable with prevent that bonding jumper from contacting with other conductive components, affect the stability that the utility model circuit switches on and off, described wire connecting portion also comprises terminal block, outgoing line side and inlet wire side are the groove being arranged on terminal block, axisymmetricly, contact is zigzag to two grooves, and on contact, is provided with the end of a thread hole and line ball bolt, contact is arranged in pairs in two grooves, and the upper end of all contacts is all positioned at same plane.
The utlity model has following beneficial effect:
1, the base arranging and upper cover are isolated for wire connection cavity and external environment, and wire connection cavity is for the accommodation space of cable connector like this, and the electric spark that cable connector place produces is shielded by base and upper cover, reaches the explosion prevention function of terminal box, the contact arranging is for being connected on the connection of circuit for circuit, contact on inlet wire side and outgoing line side is symmetrical arranged in pairs, every pair of contact is for two contacts at forming circuit, be arranged on each bonding jumper on conducting bar for the circuit turn-on between a pair of contact, like this, after base has been connected with upper cover, make conducting bar towards a lateral movement of wire connecting portion until bonding jumper is connected two corresponding contacts by rotary screw, the function that the utility model performance cable is connected, in the time that the utility model need to be dismantled, because screw rod becomes to be threaded with upper cover, like this, when upper cover departs from base, bonding jumper also departs from contact, the circuit that makes like this energising connect becomes off state, reach and prevent that the charged situation about opening that opens by mistake of terminal box from occurring.
2, the guide post arranging is the guiding in the motion process direction of motion for conducting bar, is convenient to realize conducting bar and moves along the direction of contact, is conducive to the precision of bonding jumper and contacts mates.
3, the lock nut arranging loosens and the sealing at screw rod and upper cover points of engagement place for screw rod: reach after the station in on-state at conducting bar, realize screw rod and force sealed ring deformation to stop up the gap between screw rod and upper cover to the compression of sealing ring under the upper locking covering, lock nut locking state by screwing lock nut, realize the technique effect of sealing ring sealing.
4, the penetration pipe arranging is drawn and is introduced from the utility model for cable, in the version of penetration pipe, reducing through hole on through hole, lead-in wire cylinder between clamping nut and sealing gasket passes penetration pipe for cable, the structural relation of clamping nut and sealing gasket, make clamping nut further going deep in the process of reducing through hole, the length of sealing gasket quilt is compressed, make like this sealing gasket to its through-hole side distortion, in above process, on sealing gasket, the aperture of through hole diminishes, and finally contacts the sealing of the junction of realizing terminal box and cable with the outer wall of cable.
Brief description of the drawings
Fig. 1 is a kind of uncapping from the structural representation of the specific embodiment of anti-explosion terminal box opening circuit described in the utility model;
Fig. 2 is a kind of uncapping from the structural representation of the specific embodiment of anti-explosion terminal box penetration pipe opening circuit described in the utility model;
Fig. 3 is a kind of uncapping from the structure division cutaway view of the specific embodiment of anti-explosion terminal box penetration pipe opening circuit described in the utility model;
Fig. 4 is a kind of uncapping from the structural representation of the specific embodiment of explosion-proof wiring box cover opening circuit described in the utility model;
Fig. 5 is a kind of uncapping from the structural representation of the specific embodiment of anti-explosion terminal box conducting bar opening circuit described in the utility model;
Fig. 6 is a kind of uncapping from the structural representation of the anti-explosion terminal box screw rod, lock nut and the specific embodiment of sealing ring that open circuit described in the utility model;
Fig. 7 is that a kind of uncapping described in the utility model touched the structural representation of first specific embodiment from the anti-explosion terminal box opening circuit.
Figure acceptance of the bid note is respectively: 1, base, 2, wire connecting portion, 21, inlet wire side, 22, outgoing line side, 23, terminal block, 24, contact, 3, penetration pipe, 31, clamping nut, 32, lead-in wire cylinder, 33, sealing gasket, 4, upper cover, 5, reinforcement, 6, conducting bar, 61, bonding jumper, 7, guide post, 8, lock nut, 9, screw rod, 10, sealing ring, 11, wire connection cavity, 12, threaded block, 13, holder.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but structure of the present utility model is not limited only to following examples.
Embodiment 1:
As Fig. 1 to Fig. 7, a kind of uncapping from the anti-explosion terminal box opening circuit, comprise base in the form of slot 1 and the upper cover 4 being connected with base 1 bolt or screw, between described base 1 and upper cover 4, form wire connection cavity 11, on the side of described base 1, be also fixed with at least one penetration pipe 3, in described wire connection cavity 11, be also provided with wire connecting portion 2, described wire connecting portion 2 comprises inlet wire side 21, outgoing line side 22 and conducting bar 6, on described inlet wire side 21 and outgoing line side 22, be provided with at least one contact 24, and the contact 24 in inlet wire side 21 is symmetrical arranged in pairs with the contact 24 on outgoing line side 22,
On described upper cover 4, be also fixed with guide post 7, on upper cover 4, be also provided with the screw rod 9 that one-tenth is threaded with it, described screw rod 9 is parallel with guide post 7 axis, conducting bar 6 comprises insulating body and is arranged on the bonding jumper 61 on insulating body, conducting bar 6 is connected with screw rod 9 thread segment ends, and conducting bar 6 position in the axial direction of screw rod 9 is fixed and screw rod 9 can rotate around its axis, on conducting bar 6, be also provided with the guide post hole with guide post 7 matched in clearance, the nut end of screw rod 9 and thread segment end lay respectively at outside and the inner side of upper cover 4, on screw rod 9 in upper cover 4 outsides, be also provided with the lock nut 8 being threaded with screw rod 9, between described lock nut 8 and upper cover 4, be also provided with sealing ring 10,
Described penetration pipe 3 comprises the lead-in wire cylinder 32 being fixed on base 1, on the axis of lead-in wire cylinder 32, be provided with reducing through hole, one end of reducing through hole is provided with internal thread, in described reducing through hole, be embedded with sealing gasket 33, in internal thread hole, be provided with the clamping nut 31 that one-tenth is threaded with it, one end in contact of one end of clamping nut 31 and sealing gasket 33, and the other end of sealing gasket 33 is fixed with respect to lead-in wire cylinder 32 position relationships, sealing gasket 33 with on clamping nut 31, be provided with the axis through hole parallel with reducing through-bore axis.
Concrete, in the present embodiment, the base 1 arranging and upper cover 4 adopt has fabulous impact strength, good stability of the dimension, electrical property, resistance to wear, chemical proof, dyeability, the good ABS engineering plastics of processing and forming and machining, the penetration pipe 3 arranging is made up of the polytetrafluoroethylene with good self-lubricating property, the sealing gasket 33 arranging, sealing ring 10 adopts the fluorubber with favorable elasticity and resistance to polarity, screw rod 9 is connected by a hinged ball-joint that is arranged on screw rod 9 ends with conducting bar 6, and for ease of better realizing the sealing effectiveness of sealing ring 10, it is smooth transition section that screw rod 9 is set to end of thread interlude, sealing ring 10 is positioned in time smooth transition section with the points of engagement of screw rod 9, to eliminate the impact of screw thread on sealing ring 10 sealing properties on screw rod 9, contact 24 is set to inlet wire and occurs that cable the end of a thread is directly connected.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, as Fig. 1 to Fig. 7, due to base 1 and upper cover 4 no matter be for security consideration or save material and consider, in prior art, adopt plastic material with upper-part more, for the connecting thread that prevents base 1 and upper cover 4 is in easily premature failure under aging defect of plastics, on described base 1, be fixed with multiple threaded blocks 12 that are connected with upper cover 4 bolts or screw for base 1, described threaded block 12 is the internal thread metallic sheath being embedded on base 1, and threaded block 12 described in the present embodiment is for arranging female copper sheathing.
Embodiment 3:
The present embodiment is further qualified on the basis of embodiment 1, as Fig. 1 to Fig. 7, for ensureing the sealing property between base 1 and upper cover 4, between described base 1 and the link end face of upper cover 4, is also provided with housing seal circle.
Embodiment 4:
The present embodiment is further qualified on the basis of above embodiment, as Fig. 1 to Fig. 7, resists the ability of outside destroy for strengthening upper 4 lids, on described upper cover 4, is also provided with reinforcement 5, and preferably reinforcement 5 is arranged on the inner side of upper cover 4.
For ease of installation of the present utility model and fixing, on described base 1 or upper cover 4, be also provided with holder 13, described holder 13 is the block structure that one end and 1, the end or upper cover 4 were fixedly connected with and were provided with on it fixed bolt hole.
Embodiment 5:
The present embodiment is further qualified on the basis of embodiment 1, and as Fig. 1 to Fig. 7, for further ensureing the sealing property at penetration pipe 3 places, the internal thread arranging on reducing through hole on described lead-in wire cylinder 32 is gas thread.
Embodiment 6:
The present embodiment is further qualified on the basis of above embodiment, as Fig. 1 to Fig. 7, for making sealing gasket 33 and cable there is larger contact area, to increase the frictional force between sealing gasket 33 and cable, be convenient to like this transmit by base 1 or upper cover 4 pulling force of cable, avoid cable connector to connect under cable tension stress loosening, the length of described sealing gasket 33 is not less than 3mm.
For ease of the structure that is connected, simplifies contact 24 of contact 24 and cable with prevent that bonding jumper 61 from contacting with other conductive components, affect the stability that the utility model circuit switches on and off, described wire connecting portion 2 also comprises terminal block 23, outgoing line side 22 and inlet wire side 21 are the groove being arranged on terminal block 23, two grooves axisymmetricly, contact 24 is zigzag, and on contact 24, be provided with the end of a thread hole and line ball bolt, contact 24 is arranged in pairs in two grooves, and the upper end of all contacts 24 is all positioned at same plane.
Above content is the further description of the utility model being done in conjunction with concrete preferred implementation, can not assert that embodiment of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, not departing from other execution modes that draw under the technical solution of the utility model, all should be included in protection range of the present utility model.
Claims (8)
1. uncap from the anti-explosion terminal box opening circuit for one kind, comprise base in the form of slot (1) and the upper cover (4) being connected with base (1) bolt or screw, between described base (1) and upper cover (4), form wire connection cavity (11), on the side of described base (1), be also fixed with at least one penetration pipe (3), it is characterized in that, in described wire connection cavity (11), be also provided with wire connecting portion (2), described wire connecting portion (2) comprises inlet wire side (21), outgoing line side (22) and conducting bar (6), on described inlet wire side (21) and outgoing line side (22), be provided with at least one contact (24), and the contact (24) in inlet wire side (21) is symmetrical arranged in pairs with the contact (24) on outgoing line side (22),
On described upper cover (4), be also fixed with guide post (7), on upper cover (4), be also provided with the screw rod (9) that one-tenth is threaded with it, described screw rod (9) is parallel with guide post (7) axis, conducting bar (6) comprises insulating body and is arranged on the bonding jumper (61) on insulating body, conducting bar (6) is connected with screw rod (9) thread segment end, and conducting bar (6) fixes in the axially upper position of screw rod (9) and screw rod (9) can rotate around its axis, on conducting bar (6), be also provided with the guide post hole with guide post (7) matched in clearance, the nut end of screw rod (9) and thread segment end lay respectively at outside and the inner side of upper cover (4), on screw rod (9) in upper cover (4) outside, be also provided with the lock nut (8) being threaded with screw rod (9), between described lock nut (8) and upper cover (4), be also provided with sealing ring (10),
Described penetration pipe (3) comprises the lead-in wire cylinder (32) being fixed on base (1), on the axis of lead-in wire cylinder (32), be provided with reducing through hole, one end of reducing through hole is provided with internal thread, in described reducing through hole, be embedded with sealing gasket (33), in internal thread hole, be provided with the clamping nut (31) that one-tenth is threaded with it, one end in contact of one end of clamping nut (31) and sealing gasket (33), and the other end of sealing gasket (33) is fixed with respect to lead-in wire cylinder (32) position relationship, sealing gasket (33) is provided with the axis through hole parallel with reducing through-bore axis with on clamping nut (31).
2. a kind of uncapping from the anti-explosion terminal box opening circuit according to claim 1, it is characterized in that, on described base (1), be fixed with multiple threaded blocks (12) that are connected with upper cover (4) bolt or screw for base (1), described threaded block (12) is the internal thread metallic sheath being embedded on base (1).
3. a kind of uncapping from the anti-explosion terminal box opening circuit according to claim 1, is characterized in that, between described base (1) and the link end face of upper cover (4), is also provided with housing seal circle.
4. a kind of uncapping from the anti-explosion terminal box opening circuit according to claim 1, is characterized in that, is also provided with reinforcement (5) on described upper cover (4).
5. a kind of uncapping from the anti-explosion terminal box opening circuit according to claim 1, it is characterized in that, on described base (1) or upper cover (4), be also provided with holder (13), described holder (13) is the block structure that one end and base (1) or upper cover (4) were fixedly connected with and were provided with on it fixed bolt hole.
6. according to a kind of the uncapping from the anti-explosion terminal box opening circuit described in any one in claim 1 to 5, it is characterized in that, the internal thread arranging on the upper reducing through hole of described lead-in wire cylinder (32) is gas thread.
7. according to a kind of the uncapping from the anti-explosion terminal box opening circuit described in any one in claim 1 to 5, it is characterized in that, the length of described sealing gasket (33) is not less than 3mm.
8. according to a kind of the uncapping from the anti-explosion terminal box opening circuit described in any one in claim 1 to 5, it is characterized in that, described wire connecting portion (2) also comprises terminal block (23), outgoing line side (22) and inlet wire side (21) are the groove being arranged on terminal block (23), two grooves axisymmetricly, contact (24) is zigzag, and on contact (24), be provided with the end of a thread hole and line ball bolt, contact (24) is arranged in pairs in two grooves, and the upper end of all contacts (24) is all positioned at same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420407896.0U CN203951118U (en) | 2014-07-23 | 2014-07-23 | A kind of uncapping from the anti-explosion terminal box opening circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420407896.0U CN203951118U (en) | 2014-07-23 | 2014-07-23 | A kind of uncapping from the anti-explosion terminal box opening circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203951118U true CN203951118U (en) | 2014-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420407896.0U Expired - Fee Related CN203951118U (en) | 2014-07-23 | 2014-07-23 | A kind of uncapping from the anti-explosion terminal box opening circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203951118U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113024A (en) * | 2014-07-23 | 2014-10-22 | 四川天微电子有限责任公司 | Anti-explosion wiring device capable of self-breaking circuit once cover is opened |
| CN110957686A (en) * | 2019-12-11 | 2020-04-03 | 杭州优朴信息技术有限公司 | Positioning device for incoming cable on box-type transformer |
-
2014
- 2014-07-23 CN CN201420407896.0U patent/CN203951118U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113024A (en) * | 2014-07-23 | 2014-10-22 | 四川天微电子有限责任公司 | Anti-explosion wiring device capable of self-breaking circuit once cover is opened |
| CN110957686A (en) * | 2019-12-11 | 2020-04-03 | 杭州优朴信息技术有限公司 | Positioning device for incoming cable on box-type transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20150723 |
|
| EXPY | Termination of patent right or utility model |